You probably want to use vlib_buffer_clone() instead. Best ben
> -----Original Message----- > From: vpp-dev@lists.fd.io <vpp-dev@lists.fd.io> On Behalf Of NUAA?? > Sent: Monday, August 1, 2022 4:53 > To: vpp-dev@lists.fd.io > Subject: [vpp-dev] Copy packet forwarding performance issues > > Hi，vpp experts > I have a task that send one packet to three NIC > my method is that use "vlib_buffer_alloc" function to copy three buffer， > but this method is poor performance，about that if vpp is 10G bps， once > copy will reduce 1.5G bps > > is vpp has like dpdk buffer use refcnt count to avoid copy buffer？ can > you give me some suggestions to send packet with high performence？ > > Best wish > wanghe > >
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